--- Makefile.orig	Mon Sep 29 07:01:15 2003
+++ Makefile	Mon Sep 29 07:01:23 2003
@@ -2,7 +2,7 @@
 # Written by Stanislav Shalunov.
 # $Id: Makefile,v 1.4 1999/08/04 18:30:02 shalunov Exp $
 
-PREFIX=/usr/local
+PREFIX?=/usr/local
 BINDIR=$(PREFIX)/sbin
 MANDIR=$(PREFIX)/man/man8